![subject](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 06:31 cococat7773
Ainternet provider has implemented a new process for handling customer complaints. based on a review of customer complaint data for the past 2 years, the mean time for handling a customer complain was 27 minutes. three months after implementing the plan, a random sample of the records of 50 customers who had complaints produced the following response times. use the 50 data values to determine if the new process has reduced the mean time to handle customer complaints. 32.3 26.9 25.4 32.9 27.7 32.2 24.8 20.5 30.4 21.3 25.9 27.1 19.2 28.4 18.0 33.1 31.1 21.9 33.4 24.3 25.5 29.6 32.7 21.3 31.8 27.6 17.4 26.9 18.9 28.6 23.5 21.6 20.1 30.9 26.8 28.7 24.6 21.5 21.9 28.3 24.1 28.9 29.8 27.1 23.8 25.3 30.7 27.2 19.0 30.0
a. estimate the mean time for handling a customer complaint under the new process using a 95% confidence interval.
b. is there substantial evidence (a .05) that the new process has reduced the mean time to handle a customer complaint?
c. what is the population about which inferences from these data can be made?
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30
When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30
List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:30
Yuto solved the equation below. what is the solution to yuto’s equation?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 04:30
Which container holds more,a half gallon milk jug or a 2 liter juice bottle
Answers: 1
You know the right answer?
Ainternet provider has implemented a new process for handling customer complaints. based on a review...
Questions
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 26.08.2019 04:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.08.2019 04:30
![question](/tpl/images/cats/mat.png)
Mathematics, 26.08.2019 04:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.08.2019 04:30
![question](/tpl/images/cats/mat.png)
Mathematics, 26.08.2019 04:30
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
English, 26.08.2019 04:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 26.08.2019 04:30